Conventional wisdom holds that magnets and electronic devices don’t mix. For those of us old enough to remember CRT computer monitors, such wisdom could be verified by waving a magnet across the screen. The result was a fascinating rainbow mess that landed a lot of kids in detention. But times have changed. These days, magnets are a big part of wireless charging for smartphones and other devices. And MagSafe charging is the pinnacle of that union. MagSafe is a
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